so we brought home a veiled about 4 days ago and he's been eating well and seems to be pretty happy lately. my only problem is today when i reached into his cage to feed him crickets he puffed up, hissed, and then tried to bite and walked off. o.o i wasn't even close enough to be in range of a bite. i'm not sure what it was about? is this normal for a young chameleon? i'll include pictures of him.